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Climate Change

I am grateful to my hon. Friend for giving way. I apologise for not being here at the start of the debate. It is a subject that interests me. Indeed, I was with the Minister in South Africa at the sustainability conference several years ago. The nub of the matter is using science to establish why global warming exists, and we all agree about that. Another aspect, about which I have read, is the sun’s activity. Records show that there is far more activity on the sun, which is shown by sunspots. Indeed, not only is the earth warming but it is now thought that other climates are warming. We need to differentiate what could happen naturally and what is man-made. That is vital, and far more research needs to be done.